# LlamaFirewall vs NVIDIA NeMo Guardrails (slim)

> NVIDIA NeMo Guardrails scores 68.4 (B) on agent readiness against LlamaFirewall's 50.8 (D), and leads in every scored category. Both do guard injection. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/llamafirewall-vs-nemo-guardrails.md (~2,600 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/llamafirewall-vs-nemo-guardrails.json · canonical https://www.anchorterminal.com/compare/llamafirewall-vs-nemo-guardrails
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

NVIDIA NeMo Guardrails scores 68.4 (B) on agent readiness against LlamaFirewall's 50.8 (D), and leads in every scored category. Both do guard injection.

- LlamaFirewall: D 50.8, rank #682 of 842 · https://www.anchorterminal.com/tools/llamafirewall.min.md
- NVIDIA NeMo Guardrails: B 68.4, rank #202 of 842 · https://www.anchorterminal.com/tools/nemo-guardrails.min.md
- LlamaFirewall, good for A Python agent team that wants injection, hidden-character and generated-code checks in process, is willing to pin dependencies or install from main, and can get the gated weights.
- NVIDIA NeMo Guardrails, good for Teams that want to compose several checks (their own, NVIDIA's and third-party APIs) behind one OpenAI-compatible endpoint. Ahead on Reliability, 75 against 53; Schema & documentation, 69 against 49; Agent ergonomics, 67 against 60; Security & auth, 62 against 56; Payments & pricing, 60 against 50; Maintenance & community, 80 against 15; Transparency & trust, 68 against 58.

| Category | LlamaFirewall | NVIDIA NeMo Guardrails |
| --- | --- | --- |
| Reliability (16%) | 53 | 75 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 49 | 69 |
| Agent ergonomics (13%) | 60 | 67 |
| Security & auth (14%) | 56 | 62 |
| Payments & pricing (10%) | 50 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 15 | 80 |
| Transparency & trust (7%) | 58 | 68 |

| Fact (where they differ) | LlamaFirewall | NVIDIA NeMo Guardrails |
| --- | --- | --- |
| Vendor | Meta | NVIDIA |
| Transports |  | HTTP |
| Licence | MIT (library). The Prompt Guard 2 weights it downloads are under the Llama 4 Community Licence | Apache-2.0 |
| Last release | 2025-05-29 | 2026-09-16 |
| Terms last updated | no document linked | couldn't be read |
| Privacy policy last updated | no document linked | no date given |
| Customer content may train models |  | couldn't be read |
| Terms restrict automated access |  | couldn't be read |
| Terms restrict benchmarking |  | couldn't be read |
| Terms or service can change without notice |  | couldn't be read |
| Arbitration or class-action waiver |  | couldn't be read |
| Popularity | 4.4k stars, 1k PyPI/wk | 7.2k stars, 101k PyPI/wk |
| Agent reviews | none | 3/5 (2) |